CAJ | 학술논문

介绍了泡沫陶瓷过滤片在铝合金生产中的过滤机理、作用.采用20ppi泡沫陶瓷片对ZAlSi7Cu2Mg铝合金熔体进行了过滤净化试验,通过试验总结出过滤片的临界压头随温度的变化关系;对比分析了过滤和未过滤试样的抗拉强度、伸长率及其金相组织.试验结果表明,铝液浇铸温度越高,对应的过滤片临界压头越小;过滤后的铸件的力学性能相对未过滤时有一定程度的提高.
개소료포말도자과려편재려합금생산중적과려궤리、작용.채용20ppi포말도자편대ZAlSi7Cu2Mg려합금용체진행료과려정화시험,통과시험총결출과려편적림계압두수온도적변화관계;대비분석료과려화미과려시양적항랍강도、신장솔급기금상조직.시험결과표명,려액요주온도월고,대응적과려편림계압두월소;과려후적주건적역학성능상대미과려시유일정정도적제고.
The purification mechanics and function of foam ceramic filter were introduced. The filtration experiments of ZAlSi7Cu2Mg metal alloy with 20 ppi CCF were done. The relationship between critical pressure and temperature was found. From two aspects of filtering or not, the tensile strength, extension ratio and microstructure of the samples were analyzed contrastively. The test results show that, the higher the pouring temperature of molten aluminum, the smaller the corresponding critical pressure head of filter. Comparing with no filtering, the mechanical properties of the samples after filtering improve to some extend.